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Unformatted text preview: Pictu re 3 Pictu re 4 Name: Nafe Qureshi Date: 06/15/2009 T.A: Joe Azzarella Exp # 32 Introduction : purpose of this experiment is to convert salicylic acid to aspirin using acetic anhydride .the initial problem was weather or not pure aspirin can be prepared from salicylic acid. Transformation of the hydroxyl functional group was achieved by utilizing an esterification reaction, which is the reaction of a carboxylic acid with an alcohol to form a carboxylate ester. In this experiment acetic anhydride was used as carboxylic acid and salicylic acid as alcohol. This reaction is acid catalyzed using sulfuric acid as the catalyst. Reaction: mechanism: Procedure: To a 5 ml conical vial 1ml of acetic anhydride and 3mmol of salicylic acid were added. 1. 300 mL of water were placed into a 400 mL beaker and stirrer and heat were turned on the water on low (45-50 C). 2. 3 mmol salicylic acid were weighed and then transferred to a 5 ml conical vial....
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This note was uploaded on 11/10/2010 for the course CHE 201 taught by Professor Bong during the Spring '08 term at SUNY Buffalo.
- Spring '08
- Organic chemistry